CALCULATING THE SOCIAL COSTS OF CARBON WITHOUT KNOWING PREFERENCES COMMENT ON "A RAPID ASSESSMENT MODEL FOR UNDERSTANDING THE SOCIAL COST OF CARBON"

Reyer Gerlagh

Climate Change Economics (CCE), 2014, vol. 05, issue 02, 1-7

Abstract: The Social Costs of Carbon (SCC) equals the marginal welfare loss associated with one unit of emittedCO2, divided by the marginal welfare gain associated with one unit of consumption. In stochastic assessments, both the nominator and denominator can depend on uncertain parameters; specifically they depend on the (implicit) scaling of the welfare function with the parameters. I discuss some pitfalls when calculating the expected value or the certainty equivalent of the SCC, and show that a mistaken procedure easily leads to very high or very low estimates for the SCC. I use the paper by Newboldet al.(2013) as an illustration.

Keywords: Climate change; social cost of carbon; integrated assessment models; uncertainty (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:wsi:ccexxx:v:05:y:2014:i:02:n:s2010007814500043

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DOI: 10.1142/S2010007814500043

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